Everything is working great, with one catastrophic exception. In the last week, after a few of using Lion, I had a "invalid node structure" error that couldn't be fixed by Disk Utility or Disk Warrior, so I had to re-install the whole system. Two days after a fresh re-install, same problem. This time, my data partition (HFS+ also) was damaged, but fortunately I was able to repair it and recover most of the data. The problem appears also in 10.7.3, after a combo update. I'm using only the necessary kexts: AtherosL1Ethernet, FakeSMC, IOAHCIBlockStorageInjector and Jmicron36xATA.